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• RESULTS -SPRINGS FOR WATER YEAR 2005 <br />Three springs were sampled during the 2005 water year. Spring 1 (Upper Carbon <br />Junction Canyon) above the mine was flowing during the inspection of April 15, 2005 and <br />sampling took place. The spring was dry during the December 2005 inspection As <br />described above, this spring has been dry for two decades and began to flow during the <br />spring of 2003. Flow took place again this water year, and it is likely flow has returned as <br />a result of more normal levels of winter precipitation in the area. Spring 3 (REA SPG #3) <br />was flowing during the April and October 2005 inspections as was Spring 4 (CJ-LO-SPG <br />#4). Springs 3 and 4 originate below Lhe mine and permit area. Spring 3 (REA SPG #3) is <br />approximately 1,000 feet south of the permit azea in REA Canyon. Spring 4 (CJ-LO-SPG <br />#4) is approximately 200 feet west of the permit area in Carbon Junction Canyon. <br />Summaries of the data collected for the 2005 water yeaz for the springs are found in <br />Tables I through 3. <br />Spring Flow Rate <br />Flow rates at springs 1, 3, and 4 appear to respond to seasonal recharge, snowpack, and <br />recent precipitation events. In general, spring flow is highest during the spring months of <br />the calendar year, responding to infiltration from snowpack and shallow groundwater <br />recharge. Spring flow is usually lowest during the autumn and winter of the calendaz year, <br />reflecting drier conditions with less precipitation and recharge to the springs. During <br />. yeazs with high snow pack, such as 1994-1995, flow rates were significantly higher than in <br />more normal years (1997-1998) or dry years (1998-1999). Flow rate information was not <br />collected for the 2005 water year at the springs, with the exception of a reported flow of <br />60 GPM from Spring 3 during the Apri12005 sampling. As this flow rate is over ten times <br />normal reported rates for this spring, this rate will require verification prior to assigning <br />any importance to this event. <br />Spring Temperature <br />Temperatures of spring flow also appeaz seasonally related. During the winter and early <br />spring, temperatures are at their lowest. With the onset of warmer weather, spring <br />temperatures rise through the summer. With the coming of autumn and winter, spring <br />temperatures begin to decrease and reach their lowest level during first calendaz quarter <br />sampling. This phenomenon appeazs to support the conjecture that these springs aze <br />shallow and recharged largely by winter snowmelt. Spring temperatures during this water <br />year were within the range of previously recorded temperatures. The temperature for <br />Spring 1 was relatively warm compared with the other two springs the past two water <br />years, though within the range of historic temperatures recorded for Springs 3 and 4. The <br />water temperature for Spring 3 was within the historic range and reflected the seasonal <br />fluctuations described above. The temperature of Spring 4 remained more consistent with <br />temperatures from the majority of the last ten water years. <br />U <br />Carbon Junction Mine Page 4 <br />Mnual Hydrologic Report for Water Year 2006 <br />